{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=16",
    "query": {
      "intervention": "No intervention (observational study)",
      "page": 16
    },
    "page_size": 10
  },
  "pagination": {
    "page": 16,
    "page_size": 10,
    "total_count": 918,
    "total_pages": 92,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=17&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=15&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T20:46:01.993Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT00926991",
      "title": "Chest Wall Repair of Rib Fractures After Trauma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rib Fractures"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2009-08",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2011-03-22",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00926991"
    },
    {
      "nct_id": "NCT04937868",
      "title": "Developing a Decision Instrument to Guide Abdominal-pelvic CT Imaging of Blunt Trauma Patients",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Abdominal Injury",
        "Pelvic Fracture",
        "Genital Hemorrhage",
        "Lumbar Spine Injury",
        "Hip Injuries",
        "Liver Injury",
        "Spleen Injury",
        "Renal Injury",
        "Diaphragm Injury",
        "Aortic Rupture",
        "Aortic Dissection",
        "Bowel Disease",
        "Vascular System Injuries",
        "Sacral Fracture"
      ],
      "interventions": [
        {
          "name": "There are no interventions associated with this study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 12000,
      "start_date": "2018-01-15",
      "completion_date": "2027-06-15",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04937868"
    },
    {
      "nct_id": "NCT00383500",
      "title": "Lymphedema Prophylaxis in Breast Cancer Survivors Who Show Early Evidence of High-risk Status",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lymphedema",
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Flexitouch",
          "type": "DEVICE"
        },
        {
          "name": "Class 1 compression garment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 75,
      "start_date": "2005-05",
      "completion_date": "2009-09",
      "has_results": true,
      "last_update_posted_date": "2017-03-30",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00383500"
    },
    {
      "nct_id": "NCT01475565",
      "title": "Insulin Resistance Before and During Pregnancy in Women With Polycystic Ovary Syndrome",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Polycystic Ovary Syndrome",
        "Insulin Resistance",
        "Insulin Sensitivity",
        "Obesity",
        "Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 2,
      "start_date": "2013-05",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2015-12-14",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01475565"
    },
    {
      "nct_id": "NCT02306668",
      "title": "Ocular Surface Dry Eye Microbiome",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dry Eyes"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2014-02",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2014-12-03",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02306668"
    },
    {
      "nct_id": "NCT05330676",
      "title": "Evaluation of Microcirculatory Function and Mitochondrial Respiration After Cardiovascular Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Shock",
        "Cardiovascular Diseases",
        "Critical Illness"
      ],
      "interventions": [
        {
          "name": "coronary artery bypass grafting, valve repair/replacement",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 142,
      "start_date": "2020-09-01",
      "completion_date": "2023-04-01",
      "has_results": true,
      "last_update_posted_date": "2024-05-02",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05330676"
    },
    {
      "nct_id": "NCT05826665",
      "title": "Observational Study to Examine the Procedural and Outcomes of AF Ablation Assisted by STAR Apollo™ Mapping System",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Persistent Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Persistent AF ablation assisted with the STAR Apollo Mapping System",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Kansas City Heart Rhythm Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 200,
      "start_date": "2023-10-02",
      "completion_date": "2025-07-31",
      "has_results": false,
      "last_update_posted_date": "2024-10-16",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 4,
      "location_summary": "Jonesboro, Arkansas • Sarasota, Florida • Overland Park, Kansas",
      "locations": [
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05826665"
    },
    {
      "nct_id": "NCT03734393",
      "title": "HOPE in Action Trial of HIV+ Deceased Donor Liver Transplants for HIV+ Recipients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hiv"
      ],
      "interventions": [
        {
          "name": "HIVD+/R+",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2019-01-04",
      "completion_date": "2025-07-04",
      "has_results": false,
      "last_update_posted_date": "2026-07-20",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 26,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • San Diego, California + 17 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03734393"
    },
    {
      "nct_id": "NCT01825421",
      "title": "A Pilot Randomized Controlled Trial for Antibiotic Exposure in Neonatal Sepsis Using Neutrophil CD64",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Neonatal Early-onset Sepsis",
        "Neonatal Late-onset Sepsis"
      ],
      "interventions": [
        {
          "name": "Intervention is to stop antibiotics at 24h .",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Hour",
        "maximum_age": "5 Months",
        "sex": "ALL",
        "summary": "1 Hour to 5 Months"
      },
      "enrollment_count": 0,
      "start_date": "2014-10",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2020-03-30",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01825421"
    },
    {
      "nct_id": "NCT04943835",
      "title": "Validity of a Test of Functional Cognition in Persons With Acquired Brain Injury",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acquired Brain Injury"
      ],
      "interventions": [
        {
          "name": "Observational - No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 73,
      "start_date": "2017-01-12",
      "completion_date": "2020-02-05",
      "has_results": false,
      "last_update_posted_date": "2021-06-29",
      "last_synced_at": "2026-10-20T20:46:01.993Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04943835"
    }
  ]
}